Histomorphometric Survey of Placentas of HIV-positive Mothers in Relation to their Clinical Stage in a Teaching Hospital in Uyo, South-South Nigeria.

Objectives: HIV infection in pregnancy affects the mother, her placenta, and fetus resulting in perinatal/maternal morbidity and mortality. Studies show that HIV-positive mothers have several placental morphological changes. This study aimed to describe the histomorphometric parameters/lesions of placentas of HIV-positive mothers in Uyo, Akwa Ibom State, Nigeria. Methods: A prospective cross-sectional hospital-based analytical study was conducted at the departments of Obstetrics and Gynecology, and Histopathology, University of Uyo Teaching Hospital, Nigeria from December 2015 to May 2016. We studied 144 pregnant mothers (48 HIV-positive as the test group vs. 96 HIV-negative as controls). Their placentas (fetal membrane, umbilical cord, and placental disk) were collected post-delivery and evaluated (grossly/microscopically) to determine the range of histomorphometric placental parameters/lesions. Relevant obstetric data were obtained from their case notes. Results: The test group delivered more through cesarean section than the control group (52.1% vs. 31.3%), with mean birth weights of 2.8±0.7 and 3.1±0.6 kg (p = 0.004). The mean placental weights were 57±190.1 and 664.6±167.4 g (p = 0.003), with mean placenta-birth weight ratio of 20.1±4.8 and 20.5±4.57% (p = 0.33). The test groups placental fetal membranes, umbilical cords, and disks mainly displayed acute chorioamnionitis (47.9%), acute umbilical phlebitis (14.6%), and villous vasculopathy (33.3%). The test group had a higher stage/grade of placental inflammation than the control group. In the test group, two stage 4 HIV disease state cases presented with the most severe form of placental inflammatory lesions. Conclusions: The commonest placental histomorphometric parameters/lesions were acute chorioamnionitis, acute umbilical phlebitis, and acute intervillositis. There was no significant association between HIV/AIDS disease stage with the most severe forms of placental inflammatory lesions.

Epidemiology, risk factors, social determinants of health, and current management for non-alcoholic fatty liver disease in sub-Saharan Africa.

Non-alcoholic fatty liver disease (NAFLD) is the leading cause of chronic liver disease globally and is estimated to affect approximately 25% of the world's population. Data about the prevalence and incidence of NAFLD in Africa are scarce, but the prevalence is estimated to be 13·5% for the general population. This is likely to be an underestimate considering the increasing burden of non-communicable diseases, particularly the rising prevalence of obesity and type 2 diabetes, driven by the overlapping challenges of food insecurity, nutritional transition, and associated increased consumption of calorie-dense foods. Establishing the true prevalence of NAFLD, raising public awareness around the risk factors behind the increase in NAFLD, and proactively addressing all components of metabolic syndrome will be important to combat this silent epidemic, which will have long-term health-care costs and economic consequences for the region.

Bilateral secondary testicular, epididymal and spermatic cords carcinoma of prostatic origin: a case report and review of the literature.

BACKGROUND: Prostatic carcinoma is emerging as the most common male malignancy in Nigeria and the second most common male cancer worldwide. Patients often present with locally advances stages, and common sites of metastasis are the spine, pelvis, chest, and long bones. Metastases to the testes and spermatic cords are reputed to be rare and may be indicative of a worse outcome, when they occur. We recently encountered a clinical case of bilateral testicular, epididymal and spermatic cords prostatic cancer metastases. CASE PRESENTATION: A 71-year-old Nigerian man, who presented at our hospital with 1-month-old complaints of inability to walk together with low back and bilateral thigh pains. This presentation had been preceded by a 5-month history of lower urinary tract symptoms. On examination, the prostate was hard and nodular as were the left testis and spermatic cord. On histological assessment of a needle biopsy, prostatic adenocarcinoma (Gleason score 5 + 5 = 10) was diagnosed. A subsequent therapeutic bilateral total orchidectomy specimen was found to contain metastatic prostatic carcinoma deposits, in the testes, epididymides, and spermatic cords. Although our patient is currently doing well postoperatively on zoledronic acid, ketoconazole, bicalutamide, and tamsulosin, he is being re-evaluated periodically for any feature of recurrence. CONCLUSION: Since it has implications for eventual outcome, every clinically suspicious therapeutic orchidectomy specimen should be subjected to a detailed histopathological examination in order to exclude secondaries from the primary prostatic malignancy.

Pulmonary Fibrosis in COVID-19 Survivors: Predictive Factors and Risk Reduction Strategies.

Although pulmonary fibrosis can occur in the absence of a clear-cut inciting agent, and without a clinically clear initial acute inflammatory phase, it is more commonly associated with severe lung injury. This may be due to respiratory infections, chronic granulomatous diseases, medications, and connective tissue disorders. Pulmonary fibrosis is associated with permanent pulmonary architectural distortion and irreversible lung dysfunction. Available clinical, radiographic, and autopsy data has indicated that pulmonary fibrosis is central to severe acute respiratory distress syndrome (SARS) and MERS pathology, and current evidence suggests that pulmonary fibrosis could also complicate infection by SARS-CoV-2. The aim of this review is to explore the current literature on the pathogenesis of lung injury in COVID-19 infection. We evaluate the evidence in support of the putative risk factors for the development of lung fibrosis in the disease and propose risk mitigation strategies. We conclude that, from the available literature, the predictors of pulmonary fibrosis in COVID-19 infection are advanced age, illness severity, length of ICU stay and mechanical ventilation, smoking and chronic alcoholism. With no proven effective targeted therapy against pulmonary fibrosis, risk reduction measures should be directed at limiting the severity of the disease and protecting the lungs from other incidental injuries.

Hepatitis B in sub-Saharan Africa: strategies to achieve the 2030 elimination targets.

The WHO global health sector strategy on viral hepatitis, created in May, 2016, aims to achieve a 90% reduction in new cases of chronic hepatitis B and C and a 65% reduction in mortality due to hepatitis B and C by 2030. Hepatitis B virus (HBV) is endemic in sub-Saharan Africa, and despite the introduction of universal hepatitis B vaccination and effective antiviral therapy, the estimated overall seroprevalence of hepatitis B surface antigen remains high at 6·1% (95% uncertainty interval 4·6-8·5). In this Series paper, we have reviewed the literature to examine the epidemiology, burden of liver disease, and elimination strategies of hepatitis B in sub-Saharan Africa. This paper reflects a supranational perspective of sub-Saharan Africa, and recommends several priority elimination strategies that address the need both to prevent new infections and to diagnose and treat chronic infections. The key to achieving these elimination goals in sub-Saharan Africa is the effective prevention of new infections via universal implementation of the HBV birth-dose vaccine, full vaccine coverage, access to affordable diagnostics to identify HBV-infected individuals, and to enable linkage to care and antiviral therapy.

The role of the anatomy of the sigmoid colon in developing sigmoid volvulus: a cross-sectional study.

PURPOSE: The aim of this study was to determine the length of the sigmoid colon and sigmoid mesocolon in living subjects and fresh cadavers. METHODS: The subjects for the study were consecutive 50 living subjects undergoing abdominal surgeries via midline incision and 50 fresh cadavers undergoing a medicolegal postmortem at Obafemi Awolowo University Teaching Hospitals Complex, Ile-Ife, Osun State, Nigeria. RESULTS: The study showed that the mean length of the sigmoid colon in living subjects was 48.9 ± 1.3 cm (range 30.5-65 cm) while the mean length of the sigmoid colon in cadaver subjects was 50.1 ± 1.6 cm (range 34.5-67.8 cm) and this was not statistically significantly different. Two patterns of the shape of the sigmoid loop were identified: dolichomesocolic and brachymesocolic pattern. In about 80 % of subjects in both groups, dolichomesocolic-type was seen. The gender analysis showed that males had statistically significant longer sigmoid colon (P = 0.040). The dimension of sigmoid colon significantly increased with age of the patients in cadaver subjects and in both sexes (P = 0.001). CONCLUSIONS: The study concluded that the lengths of sigmoid colon are not different in living and cadaver subjects but are relatively longer than measurement from western countries. The lengths of sigmoid colon and mesocolon also increases with age and this may possibly be the anatomical basis for the frequent occurrence of sigmoid volvulus and failed colonoscopy among the older population in our environment.

Autopsy-certified maternal mortality at Ile-Ife, Nigeria.

AIM: Maternal mortality is a major health problem, especially in Nigeria, where accurate autopsy-based data on the prevalent causes are not readily available. The aim of this study was therefore to accurately determine the causes of maternal death as seen in a tertiary health facility in Nigeria. MATERIALS AND METHODS: This was a descriptive, retrospective review of the postmortem autopsy findings from cases of maternal death at the Obafemi Awolowo University Teaching Hospitals Complex, Ile-Ife, Nigeria over a 5-year period. Analyses were performed for differences in proportions using PEPI computer programs for epidemiologists (P is significant at <0.05). RESULTS: A total of 84 cases of maternal deaths were used for the study. Approximately 71.4% of the maternal deaths were due to direct causes and 28.6% were due to indirect causes. The mean age at the time of death was 27.9±7.5 years. Overall, the three leading causes of death were obstetric hemorrhage (30.9%), complications of abortion (23.8%), and nongenital (nonobstetric) infections (14.2%). Of the direct causes of maternal death, obstetric hemorrhage (43.3%) was the leading cause, with postpartum hemorrhage accounting for most (65.0%) of such deaths; other causes included complications of unsafe induced abortion (33.3%) and of labor (11.7%). Of the indirect causes, nongenital infections (50.0%), anemia (25.0%), and preexisting hypertension (20.8%) accounted for the majority of the maternal deaths. There was disparity between the clinical and autopsy diagnoses in 34 of the 84 cases (38.1%). CONCLUSION: The leading causes of maternal death in this study are similar to those in other developing countries. Autopsy is an invaluable tool in accurately determining the cause of maternal death.

Severe gastrointestinal haemorrhage due to primary intestinal kaposi's sarcoma - a case report.

Kaposi's Sarcoma (KS) was previously a relatively rare disease. With the advent of HIV/AIDS pandemic however, AIDS-related KS has been on the increase and so has interest in the disease. Ninety percent of patients with KS present with skin lesions. While the gastrointestinal tract is a fairly common site of metastatic KS, primary gastrointestinal KS is uncommon. The presentation of gastrointestinal KS with severe gastrointestinal bleeding is rarer still. In this report, we present a 56-year-old HIV-negative patient who presented with severe gastrointestinal bleeding without any skin lesions. Multiple hemorrhagic polypoidal lesions were found on the walls of the jejunum and ileum as well as the liver at exploratory laparotomy and these were found to be KS on histopathologic examination. We also discuss the diagnostic and therapeutic challenges we had with this rare cause of severe GI bleeding.

Non-neoplastic diseases of the cervix in Nigerians: a histopathological study.

BACKGROUND: Diseases of the cervix are common in young sexually active women. Non-neoplastic diseases are predominantly inflammatory and are common but there are a few publications on the subject compared to neoplastic diseases of the cervix. MATERIALS AND METHODS: The surgical day books of the Histopathology department of the Obafemi Awolowo University Teaching Hospitals Complex Ile-Ife, Nigeria from the year 1990-1999 (Ten years) were studied for all cervical biopsies. RESULTS: Four hundred (400) cervical surgical biopsies were received during this period. 150 (37.5%) of the cases were non-neoplastic lesions. Age range was 20-69 years with peak incidence at 40-49 years. Histological distribution showed 123 cases (82%) were chronic non-specific cervicitis. Eighteen cases (12%) were chronic cervicitis with koilocytic change pathognomonic of Human Papilloma Virus (HPV) infection, two-third (12 cases) of which occur within 40-49 years. There were five cases (3.3%) of chronic granulomatous cervicitis, three cases (2.0%) of acute cervicitis and only one case (0.7%) of microglandular endocervical hyperplasia. CONCLUSION: All the histological types were found within the peak age incidence of 40-49 years. Chronic non-specific cervicitis was the most common non-neoplastic cervical lesion and it occurs in all age groups of women studied. In 12% of patients it is associated with cytopathic effect of HPV. This has obvious implication for the occurrence of carcinoma of the cervix in our country. We recommend routine pap smear test in this group of patients especially, as a way of reducing the occurrence of carcinoma of the cervix.